Improvement in stove-dampers



UNITED STATES PATENT OFFICE.

GEORGE W. WALKER, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN STOVE-DAM PERS.

Speciication forming part of Letters Patent N0. 55,751, dated J une 19, 1866.

To all whom t may concern:

Beit known that I, GEORGE W. WALKER, ot' Boston, in the county ot Suffolk and State of Massachusetts, have invented an Improvement in Stover g and I do hereby declare that the following, taken in connection with the drawings which accompany and form part of this specitication, is a description of my invention sufficient to enable those skilled in the art to practice it.

The improvement relates to the application ot' gauze or perforated plate to the tlrattopenings ot stoves, and whether applied to the ashpit or tire-potdoors thereof or toregister-slides; and the invention consists in such application ot' the perforated plate as will permit. the passage ot' air through the plate to be regulated or sluit ott' entirely, as may be deemed desirable.

As pert'orated plates are usually applied to Stoves for admitting minute currents ot' air for the support ot' combustion ot' tuel they are always open for the passage ot' air; and though in many forms of such application it is generally considered advisable by man ut'acturers to always maintain suchopen passage, to keep up a slow degree ot' com bnstion, yetit will be found that in use there are always times and circumstances under which it is necessary to close such openings, either to prevent the admission ot air to the fuel or the expulsion ot' gases from the stove.

In my improvement I employ the perforated or t'oraminons plate or gauze, to admit the air in tinely-divided jets, (and to permit the live coals to be seen through the plate, as through mic-a5) but I make provision for regulating the extent of Stich openings and to close them entirely when it may be necessary.

The drawings represent a register-plate for a stove with my invention embodied therein,

A showing a front view, and B a horizontal section, of the same.

a denotes the plate, having atlange, Z), which abuts against the face otl the stove .and surrounds an opening into the same. The iiange forms a recess, in which is contained a registerslide, c, which is applied to the rear surface ot the plate a, and is slid laterally to and t'ro by a knob or tinger-piece,(1. The plate a is provided with openings c t'or entrance of air, and the slide c has corresluonding openings f, which, however, are covered by gauze or foraminous plate g, so that when the two sets ot' openings in the plate a. and slide c are brought opposite to each other air can enter the stove through them by passingthrough the pertorations. B v moving the slide c from this position the solid parts t' ot' said slide are brought more or less opposite to the openings e, as seen in the drawings, t'rom which it will be obvious that the extent ot' t'oraminoustair-entering) surt'ace may be regulated as circumstances may require, or that the openings@ may be closed entirely when desirable.

The perforated plate or gauzeg is shown as applied to and so as to -move with the slide c; but it will be obvious that it may be applied directly to the stationary plate a, or in such manner as not to move with the register-slide.

I claim- In combination with a t'oraminous plate or gauze through which air is admitted at the trontot' the stove for the support of combustion, a provision t'or regulating or shutting oftA the admission of such air, substantially as set t'orth.

GEO. W. WALKER.

"Witnesses:

J. B. CROSBY, F. GoULD. 

